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Albert Hofmann Bike Day: The Bicycle Trip That Changed the World


By David Blackbourn

albert hoffman bike day header
in this article
  • Introduction
  • Who was Albert Hofmann?
  • The Discovery of LSD
  • The Significance of Albert Hofmann Bike Day
  • The Legacy of Albert Hofmann Bike Day
  • How Can You Celebrate Albert Hofmann Bike Day?
  • The Role of Psychedelics in Modern Culture
  • The Importance of Safe and Responsible Use
  • The Need for Further Research
  • Conclusion

By David Blackbourn

Disclaimer: The views and opinions expressed in this article are those of the authors and do not necessarily reflect the official policy or position of the Chemical Collective or any associated parties.


The world still owes a huge debt to Albert Hofmann and his famous bicycle trip. The Swiss chemist inadvertently discovered the psychedelic properties of lysergic acid diethylamide (LSD) while riding his bike home from work on April 19, 1943. This day is now commemorated as “Albert Hofmann Bike Day”, and it has become a global celebration of the legacy of the bicycle trip that changed the world. In this article, we will explore the history of Albert Hofmann Bike Day and its impact on society around the world and its continued significance in modern culture.

Who was Albert Hofmann?

lsd molecule

Albert Hofmann was a Swiss chemist who is famous for discovering the psychoactive properties of LSD (lysergic acid diethylamide). Born on January 11, 1906, in Baden, Switzerland, Hofmann went on to study chemistry at the University of Zurich, where he earned his PhD in 1929. After completing his studies, Hofmann joined the pharmaceutical company Sandoz Laboratories (now Novartis), where he was tasked with developing new medicines. During his time at Sandoz, Hofmann synthesized LSD for the first time, in 1938, but it wasn’t until his fateful bike ride in 1943 that he discovered its powerful hallucinogenic effects.

The Discovery of LSD

lsd tripping

On April 19, 1943, Hofmann accidentally ingested a small amount of LSD while working in the laboratory. He experienced strange sensations and decided to ride his bike home to see if the effects would wear off. However, during his bike ride, he experienced a profound altered state of consciousness, which included vivid colors, kaleidoscopic patterns, hallucinations and a sense of transcendence. 

I was completely astonished by the beauty of nature. Our eyes see just a small fraction of the light in the world. It is a trick to make a colored world, which does not exist outside of human beings.

Three days later, Hofmann deliberately ingested 250 micrograms of LSD and experienced the world’s first intentional LSD trip.

With my eyes closed, I began to enjoy this wonderful play of colors and forms, which it really was a pleasure to observe. Then I went to sleep and the next day I was fine. I felt quite fresh, like a newborn.

The Significance of Albert Hofmann Bike Day

Albert Hofmann Bike Day is a celebration of the discovery of LSD and its impact on culture and society. It is also a celebration of the bicycle as a mode of transportation and a symbol of environmentalism and sustainability. Many people mark the day by riding their bikes, attending music festivals, or participating in other cultural events. The day is also an opportunity to reflect on the potential of psychedelic substances to inspire creativity, expand consciousness, and promote healing.


The Legacy of Albert Hofmann Bike Day

Since its inception, Albert Hofmann Bike Day has become a global phenomenon. It is celebrated in cities and towns all around the world, and it has inspired a wide variety of cultural and artistic expressions. For many people, the day is a reminder of the transformative power of psychedelics and the need to explore their therapeutic potential. It is also a call to action to promote environmentalism and sustainability by embracing the bicycle as a form of transportation. As the world becomes more aware of the potential of psychedelics to promote healing and personal growth, the legacy of Albert Hofmann Bike Day is more important than ever. By celebrating the discovery of LSD and its continued impact on culture and society, we can inspire a new generation of activists, artists, and thinkers to explore the frontiers of consciousness and push the boundaries of human potential.

How Can You Celebrate Albert Hofmann Bike Day?

bike day sunset

There are many ways to celebrate Albert Hofmann Bike Day. You can ride your bike to work, attend a music festival, or organize a community event. You can also take the opportunity to reflect on the impact of LSD on culture and society and explore its potential as a tool for personal growth and healing.

The Role of Psychedelics in Modern Culture

lsd therapy

In recent years, there has been a growing interest in the therapeutic potential of psychedelics. Clinical studies have shown that psychedelics can be effective in treating conditions such as depression, anxiety, PTSD, and addiction. As a result, many countries are reconsidering their approach to these substances, and some are legalizing them for medical or research purposes.

At the same time, there is a growing recognition of the cultural and spiritual significance of psychedelics. Many indigenous cultures have used psychedelic plants for centuries as part of their spiritual and healing practices. Today, there is a growing movement to decriminalize or legalize these substances for religious or cultural purposes.

The Importance of Safe and Responsible Use

While psychedelics have shown great promise as therapeutic tools, it is important to use them safely and responsibly. In an article from Scientific American, Hofmann himself compares the potential negative effects of psychedelics to that of nuclear fission, saying that just as fission threatens our global society as a whole, psychedelics “attack the spiritual center of the personality”. It is important to note that this quote does not necessarily indicate a negative view of psychedelics as a whole, but rather a recognition of their potential power and the need for responsible use.Like any powerful tool, they can be dangerous if used improperly or without proper guidance. It is essential to educate oneself on the risks and benefits of these substances and to seek out experienced guides and therapists who can provide support and guidance.

The Need for Further Research

Despite the promising results of recent clinical studies, there is still much we don’t know about the therapeutic potential of psychedelics. More research is needed to fully understand their effects, risks, and benefits, and to develop safe and effective treatment protocols. This research is hampered by the fact that many of these substances are illegal or highly regulated, making it difficult to conduct studies.


albert hoffman bike day

Albert Hofmann Bike Day is a means of celebrating the legacy of Albert Hofmann, but not only that, it is a reminder of the transformative power of psychedelics, the importance of environmentalism and sustainability, and the need to explore the frontiers of consciousness. As we look to the future, we must continue to explore the therapeutic potential of psychedelics and to advocate for their safe and responsible use.

In the words of Hofmann himself:

It gave me an inner joy, an open-mindedness, a gratefulness, open eyes and an internal sensitivity for the miracles of creation… I think that in human evolution it has never been as necessary to have this substance LSD. It is just a tool to turn us into what we are supposed to be.

David Blackbourn | Community Blogger at Chemical Collective

David is one of our community bloggers here at Chemical Collective. If you’re interested in joining our blogging team and getting paid to write about subjects you’re passionate about, please reach out to David via email at blog@chemical-collective.com

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7 months ago

A day that won’t ever be forgotten that’s for sure. Excellent article, and one about quite a magical moment in history; and a day that changed the ways in which we can conduct our research for the better ever since that day all the way to now in the present!

1 year ago

Best day

1 year ago

Imagine if he had a bad trip. Curious what the satus of LSD would be right now.

1 year ago

Happy bicycle day! a sad one for some of us though, the compound is way too restricted, expensive and complex to even be able to purchase it for regular mortals without crypto knowledge here in south america u_u it’s going to be a happy bicycle day whenever i can purchase with my card and without any sort of fear, because heck, we ain’t doing anything wrong, but thos society rules and paths are saying otherwise in our faces…

1 year ago

Happy bicycle day!

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